diff options
Diffstat (limited to 'node_modules/jsonc-parser/lib/esm/impl/format.js')
| -rw-r--r-- | node_modules/jsonc-parser/lib/esm/impl/format.js | 251 |
1 files changed, 251 insertions, 0 deletions
diff --git a/node_modules/jsonc-parser/lib/esm/impl/format.js b/node_modules/jsonc-parser/lib/esm/impl/format.js new file mode 100644 index 0000000..4d9d6ae --- /dev/null +++ b/node_modules/jsonc-parser/lib/esm/impl/format.js @@ -0,0 +1,251 @@ +/*--------------------------------------------------------------------------------------------- + * Copyright (c) Microsoft Corporation. All rights reserved. + * Licensed under the MIT License. See License.txt in the project root for license information. + *--------------------------------------------------------------------------------------------*/ +'use strict'; +import { createScanner } from './scanner'; +export function format(documentText, range, options) { + let initialIndentLevel; + let formatText; + let formatTextStart; + let rangeStart; + let rangeEnd; + if (range) { + rangeStart = range.offset; + rangeEnd = rangeStart + range.length; + formatTextStart = rangeStart; + while (formatTextStart > 0 && !isEOL(documentText, formatTextStart - 1)) { + formatTextStart--; + } + let endOffset = rangeEnd; + while (endOffset < documentText.length && !isEOL(documentText, endOffset)) { + endOffset++; + } + formatText = documentText.substring(formatTextStart, endOffset); + initialIndentLevel = computeIndentLevel(formatText, options); + } + else { + formatText = documentText; + initialIndentLevel = 0; + formatTextStart = 0; + rangeStart = 0; + rangeEnd = documentText.length; + } + const eol = getEOL(options, documentText); + let numberLineBreaks = 0; + let indentLevel = 0; + let indentValue; + if (options.insertSpaces) { + indentValue = repeat(' ', options.tabSize || 4); + } + else { + indentValue = '\t'; + } + let scanner = createScanner(formatText, false); + let hasError = false; + function newLinesAndIndent() { + if (numberLineBreaks > 1) { + return repeat(eol, numberLineBreaks) + repeat(indentValue, initialIndentLevel + indentLevel); + } + else { + return eol + repeat(indentValue, initialIndentLevel + indentLevel); + } + } + function scanNext() { + let token = scanner.scan(); + numberLineBreaks = 0; + while (token === 15 /* SyntaxKind.Trivia */ || token === 14 /* SyntaxKind.LineBreakTrivia */) { + if (token === 14 /* SyntaxKind.LineBreakTrivia */ && options.keepLines) { + numberLineBreaks += 1; + } + else if (token === 14 /* SyntaxKind.LineBreakTrivia */) { + numberLineBreaks = 1; + } + token = scanner.scan(); + } + hasError = token === 16 /* SyntaxKind.Unknown */ || scanner.getTokenError() !== 0 /* ScanError.None */; + return token; + } + const editOperations = []; + function addEdit(text, startOffset, endOffset) { + if (!hasError && (!range || (startOffset < rangeEnd && endOffset > rangeStart)) && documentText.substring(startOffset, endOffset) !== text) { + editOperations.push({ offset: startOffset, length: endOffset - startOffset, content: text }); + } + } + let firstToken = scanNext(); + if (options.keepLines && numberLineBreaks > 0) { + addEdit(repeat(eol, numberLineBreaks), 0, 0); + } + if (firstToken !== 17 /* SyntaxKind.EOF */) { + let firstTokenStart = scanner.getTokenOffset() + formatTextStart; + let initialIndent = repeat(indentValue, initialIndentLevel); + addEdit(initialIndent, formatTextStart, firstTokenStart); + } + while (firstToken !== 17 /* SyntaxKind.EOF */) { + let firstTokenEnd = scanner.getTokenOffset() + scanner.getTokenLength() + formatTextStart; + let secondToken = scanNext(); + let replaceContent = ''; + let needsLineBreak = false; + while (numberLineBreaks === 0 && (secondToken === 12 /* SyntaxKind.LineCommentTrivia */ || secondToken === 13 /* SyntaxKind.BlockCommentTrivia */)) { + let commentTokenStart = scanner.getTokenOffset() + formatTextStart; + addEdit(' ', firstTokenEnd, commentTokenStart); + firstTokenEnd = scanner.getTokenOffset() + scanner.getTokenLength() + formatTextStart; + needsLineBreak = secondToken === 12 /* SyntaxKind.LineCommentTrivia */; + replaceContent = needsLineBreak ? newLinesAndIndent() : ''; + secondToken = scanNext(); + } + if (secondToken === 2 /* SyntaxKind.CloseBraceToken */) { + if (firstToken !== 1 /* SyntaxKind.OpenBraceToken */) { + indentLevel--; + } + ; + if (options.keepLines && numberLineBreaks > 0 || !options.keepLines && firstToken !== 1 /* SyntaxKind.OpenBraceToken */) { + replaceContent = newLinesAndIndent(); + } + else if (options.keepLines) { + replaceContent = ' '; + } + } + else if (secondToken === 4 /* SyntaxKind.CloseBracketToken */) { + if (firstToken !== 3 /* SyntaxKind.OpenBracketToken */) { + indentLevel--; + } + ; + if (options.keepLines && numberLineBreaks > 0 || !options.keepLines && firstToken !== 3 /* SyntaxKind.OpenBracketToken */) { + replaceContent = newLinesAndIndent(); + } + else if (options.keepLines) { + replaceContent = ' '; + } + } + else { + switch (firstToken) { + case 3 /* SyntaxKind.OpenBracketToken */: + case 1 /* SyntaxKind.OpenBraceToken */: + indentLevel++; + if (options.keepLines && numberLineBreaks > 0 || !options.keepLines) { + replaceContent = newLinesAndIndent(); + } + else { + replaceContent = ' '; + } + break; + case 5 /* SyntaxKind.CommaToken */: + if (options.keepLines && numberLineBreaks > 0 || !options.keepLines) { + replaceContent = newLinesAndIndent(); + } + else { + replaceContent = ' '; + } + break; + case 12 /* SyntaxKind.LineCommentTrivia */: + replaceContent = newLinesAndIndent(); + break; + case 13 /* SyntaxKind.BlockCommentTrivia */: + if (numberLineBreaks > 0) { + replaceContent = newLinesAndIndent(); + } + else if (!needsLineBreak) { + replaceContent = ' '; + } + break; + case 6 /* SyntaxKind.ColonToken */: + if (options.keepLines && numberLineBreaks > 0) { + replaceContent = newLinesAndIndent(); + } + else if (!needsLineBreak) { + replaceContent = ' '; + } + break; + case 10 /* SyntaxKind.StringLiteral */: + if (options.keepLines && numberLineBreaks > 0) { + replaceContent = newLinesAndIndent(); + } + else if (secondToken === 6 /* SyntaxKind.ColonToken */ && !needsLineBreak) { + replaceContent = ''; + } + break; + case 7 /* SyntaxKind.NullKeyword */: + case 8 /* SyntaxKind.TrueKeyword */: + case 9 /* SyntaxKind.FalseKeyword */: + case 11 /* SyntaxKind.NumericLiteral */: + case 2 /* SyntaxKind.CloseBraceToken */: + case 4 /* SyntaxKind.CloseBracketToken */: + if (options.keepLines && numberLineBreaks > 0) { + replaceContent = newLinesAndIndent(); + } + else { + if ((secondToken === 12 /* SyntaxKind.LineCommentTrivia */ || secondToken === 13 /* SyntaxKind.BlockCommentTrivia */) && !needsLineBreak) { + replaceContent = ' '; + } + else if (secondToken !== 5 /* SyntaxKind.CommaToken */ && secondToken !== 17 /* SyntaxKind.EOF */) { + hasError = true; + } + } + break; + case 16 /* SyntaxKind.Unknown */: + hasError = true; + break; + } + if (numberLineBreaks > 0 && (secondToken === 12 /* SyntaxKind.LineCommentTrivia */ || secondToken === 13 /* SyntaxKind.BlockCommentTrivia */)) { + replaceContent = newLinesAndIndent(); + } + } + if (secondToken === 17 /* SyntaxKind.EOF */) { + if (options.keepLines && numberLineBreaks > 0) { + replaceContent = newLinesAndIndent(); + } + else { + replaceContent = options.insertFinalNewline ? eol : ''; + } + } + const secondTokenStart = scanner.getTokenOffset() + formatTextStart; + addEdit(replaceContent, firstTokenEnd, secondTokenStart); + firstToken = secondToken; + } + return editOperations; +} +function repeat(s, count) { + let result = ''; + for (let i = 0; i < count; i++) { + result += s; + } + return result; +} +function computeIndentLevel(content, options) { + let i = 0; + let nChars = 0; + const tabSize = options.tabSize || 4; + while (i < content.length) { + let ch = content.charAt(i); + if (ch === ' ') { + nChars++; + } + else if (ch === '\t') { + nChars += tabSize; + } + else { + break; + } + i++; + } + return Math.floor(nChars / tabSize); +} +function getEOL(options, text) { + for (let i = 0; i < text.length; i++) { + const ch = text.charAt(i); + if (ch === '\r') { + if (i + 1 < text.length && text.charAt(i + 1) === '\n') { + return '\r\n'; + } + return '\r'; + } + else if (ch === '\n') { + return '\n'; + } + } + return (options && options.eol) || '\n'; +} +export function isEOL(text, offset) { + return '\r\n'.indexOf(text.charAt(offset)) !== -1; +} |